/* ==========================================================================
   Reading Progress Bar
   ========================================================================== */

#reading-progress-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  height: 4px;
  background: rgba(0, 0, 0, 0.06);
  pointer-events: none;
}

#reading-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #008AFF 0%, #00c6ff 100%);
  border-radius: 0 2px 2px 0;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(0, 138, 255, 0.45);
}

/* Pill badge showing percentage */
#reading-progress-badge {
  position: fixed;
  bottom: 36px;
  right: 80px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 7px;
  background: #fff;
  border: 1.5px solid #e1e4e8;
  border-radius: 99px;
  padding: 6px 14px 6px 10px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.10);
  font-family: 'Open Sans', sans-serif;
  font-size: 0.82rem;
  color: #444;
  cursor: default;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}

#reading-progress-badge.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Mini circular arc */
#reading-progress-badge .rp-circle-wrap {
  position: relative;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

#reading-progress-badge .rp-circle-wrap svg {
  transform: rotate(-90deg);
}

#reading-progress-badge .rp-circle-bg {
  fill: none;
  stroke: #e9ecef;
  stroke-width: 3;
}

#reading-progress-badge .rp-circle-fill {
  fill: none;
  stroke: #008AFF;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 75.4; /* 2 * π * r (r=12) */
  stroke-dashoffset: 75.4;
  transition: stroke-dashoffset 0.2s linear;
}

#reading-progress-badge .rp-percent {
  font-weight: 700;
  color: #008AFF;
  font-size: 0.85rem;
  min-width: 32px;
}

#reading-progress-badge .rp-label {
  color: #888;
  font-size: 0.78rem;
  white-space: nowrap;
}

/* Hide badge at very top (< 3%) and at bottom (>= 99%) */
#reading-progress-badge.at-top,
#reading-progress-badge.at-bottom {
  opacity: 0;
  transform: translateY(10px);
}

/* Responsive: smaller on mobile */
@media (max-width: 576px) {
  #reading-progress-badge {
    bottom: 16px;
    right: 14px;
    padding: 5px 10px 5px 8px;
    font-size: 0.76rem;
  }
  #reading-progress-badge .rp-circle-wrap {
    width: 24px;
    height: 24px;
  }
  #reading-progress-badge .rp-label {
    display: none;
  }
}